Methylvalerat

Bezeichnung:Methylvalerat

CAS-Nr624-24-8

Englisch Name:METHYL VALERATE

CBNumberCB5733134

SummenformelC6H12O2

Molgewicht116.16

MOL-Datei624-24-8.mol

Synonyma

Methylvalerat

Methylvalerat physikalisch-chemischer Eigenschaften

Schmelzpunkt	-91°C
Siedepunkt	128 °C (lit.)
Dichte	0.875 g/mL at 25 °C (lit.)
Dampfdruck	19.33hPa at 20℃
FEMA	2752 \| METHYL VALERATE
Brechungsindex	n20/D 1.397(lit.)
Flammpunkt	72 °F
storage temp.	Flammables area
Löslichkeit	5g/l
Aggregatzustand	Liquid
Wichte	0.892 (20/4℃)
Farbe	Clear colorless
Geruch (Odor)	at 1.00 % in dipropylene glycol. sweet green fruity apple pineapple nutty
Geruchsart	fruity
Odor Threshold	0.0022ppm
Biologische Quelle	synthetic
Wasserlöslichkeit	3.5g/L at 20℃
JECFA Number	159
BRN	1741905
Dielectric constant	4.3（19℃）
LogP	2.25 at 25℃
CAS Datenbank	624-24-8(CAS DataBase Reference)
EPA chemische Informationen	Methyl valerate (624-24-8)

Sicherheit

Kennzeichnung gefährlicher	Xn
R-Sätze:	10-20-2017/10/20
S-Sätze:	16-7/9-2007/9/16
RIDADR	UN 3272 3/PG 2
WGK Germany	2
RTECS-Nr.	YV7750500
TSCA	Yes
HazardClass	3
PackingGroup	II
HS Code	29156000

Gefahreninformationscode (GHS)

METHYL VALERATE Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R10:Entzündlich.
R20:Gesundheitsschädlich beim Einatmen.
S-Sätze Betriebsanweisung:
S16:Von Zündquellen fernhalten - Nicht rauchen.
S7/9:Behälter dicht geschlossen an einem gut gelüfteten Ort aufbewahren.
Beschreibung
Methyl pentanoate, commonly known as methyl valerate, is the methyl ester of pentanoic acid (valeric acid) with a fruity odor.
Methyl pentanoate is commonly used in fragrances, beauty care, soap, laundry detergents at levels of 0.1 – 1 % .
In a very pure form ( greater than 99.5 % ) it is used as a plasticizer in the manufacture of plastics.
It is also used as an insecticide.
Chemische Eigenschaften
clear colorless liquid
Chemische Eigenschaften
Methyl valerate has a pungent, green-fruity odor, apple and pineapple-like. It has a similar flavor at 10 to 50 ppm
Chemische Eigenschaften
Methyl valerate has a pungent, green-fruity odor that is apple- and pineapple-like with a corresponding flavor at 1 0 - 5 0 ppm. May be prepared by direct esterification of the valeric acid with methanol in the presence of concentrated H2S04; note: this ester hydrolyzes readily.
Occurrence
Reported found in small amounts in the essential oil from the fruits of Ananas sativus Schult. Also reported present in apple, coffee, honey, kiwi, melon, papaya, pineapple, strawberry, tea, wine, blackberry, baked potato, olive, starfruit, passion fruit, soursop, Bourbon vanilla, mountain papaya and naranjilla fruit.
Verwenden
Methyl valerate can be used:
- In the preparation of lankacidin C 8-valerate.
- As a reactant to synthesize bis(2,2,2-trifluoroethyl) 2-oxoalkylphosphonates.
- As a substrate in the fluorination reactions of unactivated C(sp³)H bonds using decatungstate photocatalyst and N-fluorobenzenesulfonimide.
Application
Methyl valerate is primarily used in flavor compositions, although it occasionally finds application in certain phases of perfumery (masking, household products of certain type, etc.).
Its Apple-like character is useful in fruit complexes where diffusive power is desirable (chewing gum, etc.) and it performs very well in Pineapple or fantasy flavors.
synthetische
By direct esterification of valeric acid with methanol in the presence of concentrated H2SO4. Note: This ester hydrolyzes readily
Aroma threshold values
Detection: 20 to 89 ppb
Taste threshold values
Taste characteristics at 20 ppm: sweet, ripe, fruity with sweaty, dairy and cheesy nuance
Synthesis Reference(s)
Journal of the American Chemical Society, 97, p. 1180, 1975 DOI: 10.1021/ja00838a036
Allgemeine Beschreibung
Clear colorless to yellowish oily liquid.
Air & Water Reaktionen
Highly flammable. Insoluble in water.
Reaktivität anzeigen
METHYL VALERATE is an ester. Esters react with acids to liberate heat along with alcohols and acids. Strong oxidizing acids may cause a vigorous reaction that is sufficiently exothermic to ignite the reaction products. Heat is also generated by the interaction of esters with caustic solutions. Flammable hydrogen is generated by mixing esters with alkali metals and hydrides. METHYL VALERATE reacts with oxidizing agents, bases and acids.
Brandgefahr
METHYL VALERATE is flammable.
Flammability and Explosibility
Flammable

METHYL VALERATE Upstream-Materialien And Downstream Produkte

Methylvalerat Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

624-24-8, METHYL VALERATE Verwandte Suche:

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